64728531

素因数分解:

$3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1721}}^1$

素因数の和:1936

約数の個数: 32

約数和(自身を含む): 110208000

約数和(自身を除く): 45479469

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 199, 597, 1393, 1721, 1791, 4179, 5163, 5373, 12047, 12537, 15489, 36141, 37611, 46467, 108423, 325269, 342479, 1027437, 2397353, 3082311, 7192059, 9246933, 21576177, 64728531]

約数ペア:

[(1, 64728531), (3, 21576177), (7, 9246933), (9, 7192059), (21, 3082311), (27, 2397353), (63, 1027437), (189, 342479), (199, 325269), (597, 108423), (1393, 46467), (1721, 37611), (1791, 36141), (4179, 15489), (5163, 12537), (5373, 12047)]